Harrow.



H. G. HANSON.

HARROW. APPLICATION HLED MIT-17.1914. RENEWED JUNE 2|. 2916.

Patented J an. 2, 1917 g nvewfoz H- GHHNSON HANS G. HANSON, FGET'IYSBURG, SOUTH DAKOTA.

HARROW.

Application filed October 17, 1914, Serial No. 867,191.

To all whom it may concern Be it known that I, HANS G. Henson, a citizenof the United States, residing at Gettysburg, in the county of Potterand State of South Dakota, have invented certain new and usefulImprovements in Harrows, of which the following is a specification,reference being had to the accompanying drawings.

This invention relates to new and useful improvements in drags orharrows and more particularly to that type known as rigid toothedharrows.

The main object of the invention is the provision of a harrow whereinthe drag bars are all disposed in parallel relation and arrangedobliquely with respect to the draft bar, said drag bars being pivotallymounted at one end and provided with means whereby they are yieldablyretained in their effective positions.

A further object of the invention is the provision of a drag or harrowof the above character which will possess advantages in points ofefliciency and durability, is inexpensive to manufacture and at the sametime is simple in construction and operation.

iVith the above and other objects in view, the invention consists in thenovel features of construction and the combination and arrangement ofparts to be hereinafter more fully described, pointed out in the claimsand shown in the accompanying drawings, in which- Figure 1 is a top planview of the harroW constructed in accordance with my invention; Fig. 2is a longitudinal sectional view through the same; Fig. 3 is a detailperspective view illustrating the manner of securing the brace members;Fig. 4 is a detail perspective view of the inner end of one of the dragbars; Fig. 5 is a side elevation of one of the drag bars illustratingthe removable bar in cross section; Fig. 6 is a top plan viewillustrating the relative position of the removable bar with respect tothe drag bars;

Fig. 7 is a side elevation of one of the drag bars, illustrating amovable weight applied thereto.

Specification of Letters Patent.

Patented Jan. 2, 1917..

Renewed June 21, 1916. Serial No. 105,085.

generally indicated by the numeral 5 are arranged in spaced parallelrelation and the entire number of bars are disposed obliquely withrespect to the draft bar 1 and secured to the forward ends of the dragbars are the spaced plates 6, the ends of which project beyond the endsof the drag bars and are pivotally mounted upon the rod 4. It will benoted from the accompanying drawings that the spaced projecting ends ofthe plates 6 are disposed slightly at an angle with respect to the endswhich are secured to the drag bars so that the bars will be disposedobliquely with respect to the connecting rod 4:.

Arranged between the inner ends of each two of the drag bars 6 andmounted upon the rod 1 are the sleeves 7 which retain the inner ends ofthe bars in spaced relation and pivotally mounted upon the rod 4 is theinner end of the resilient brace member 8, the outer end of which isdisposed at an angle, as shown at 9, and bolted or otherwise secured tothe medial portion of the drag bar, as shown at 10. The brace bars whichare connected at their outer ends to the drag bars preferably have theirinner ends mounted upon the rod l adjacentthe inner end of the drag barnext in order, so that the drag bar thus braced is yieldably held inposition and should the same strike a stone or other object, the brace 8will yield to allow the drag bar to pass around the stone instead ofbeing pulled over the same, thus eliminating the accidental bending orbreaking of the teeth.

The drag'bars 5 are each provided with a plurality of teeth generallyindicated by the numeral 11 and which are arranged in spaced parallelrelation throughout the en tire length of the drag bars. These teeth, asillustrated in the accompanying drawings, are preferably of the rigidtype, but it will be understood that spring teeth may be used in placeof the rigid teeth if so desired. It will be noted that by the use ofthe yieldable members 8, the drag bars 5 will not only be retained intheir effective positions, but will be allowed to move laterally withrespect to the draft bar should the teeth 11 strike an object in thepath of the harrow and thus permit the drag bar to pass to one side ofthe object instead of passing over the same and breaking or bending theteeth. Spaced loops 12 are secured to the forward side of the draft bar1 and loosely connected thereto are the rods 13, the outer ends of whichare connected to a ring 14; to which the whiffle .bars are onlypermitted to yieldably swing in one direction, but it is thought thatthis movement is sufficient to permit the same to pass around anyobjects in the path of the harrow.

In using my harrow for gathering weeds and loose brush upon plowedground, I prefer to retain the bars 5 in a rigid position by reinovablyconnecting thereto a transverse bar 15 which is arranged between the twoouter sets of teeth and is removably secured to the bars by means of thehook members 16. These hook members 16 are to be arrangedalternatelybetween the sets of bars so that any longitudinal movement onthe part of the bar 15 will not disengage the hooks from the bars 5.While I have shown the bar 15 removably secured to the drag bars 5 bymeans of the hooks 16, it will be understood that belts or othersuitable forms of removable fastening means may be used if desired.

In Fig. 7 I have illustrated aslightly modified form of the invention,wherein a movable weight is applied to the upper face of the drag bar 5and is adjustably mounted thereon, so that the weight may be eitherarranged at the forward end of the drag bar or at the rear end thereof,according to the depth at which the earth is to be worked. When theweight, which is generally indicated by the numeral 17, is movedforwardly upon the drag bar, the entire teeth of the harrow will engagedeeply With.- in the earth but, on the other hand, if the weight ismoved rearwardly, only the rear teeth thereof will be forced deeply intothe earth. This weight 17 is adjustably mounted upon a bar 18 supportedin spaced relation from the drag bar 5 by means of the supporting feet19. Formed upon the forward end of the weight 17, are the spaced ears 20and pivotally mounted between said ears is a spring actuated catch 21,the downwardly projecting end of which is adapted to engage within theopenings 22 formed in the bar 18, whereby the weight may be quickly andreadily adjusted thereon and retained in its adjusted position.

From the above description taken in connection with the accompanyingdrawings,

it will be readily apparent that I have provided a simple and durableharrow or drag of the rigid tooth type wherein the drag bars arearranged in parallel relation and the entire set of drag bars disposedobliquely with respect to the draft bar. Furthermore, these drag barsare pivotally connected to the draft bar and are provided with meanswhereby they are yieldably retained in their effective positions so thatshould the teeth on the same strike a rigid object in the path of theharrow, the drag bars will be permitted to pass to one side of theobject instead of passing thereover. It will also be apparent that myimproved harrow or drag is extremely simple in construction and can bemanufactured at a comparatively low cost.

hile I have shown and described the preferred form of my invention, itwill be obvious that various changes in the details of construction andin the proportions may be resorted to for successfully carrying myinvention into practice, without sacrificing any of the novel featuresor departing from the scope of the appended claims.

What I claim is 1. A device of the class described including a draftbar, spaced bearings carried thereby, a rod arranged in spaced parallelrelation with the draft bar and mounted in said bearings, drag barshaving spaced plates secured to the inner ends thereof, said platesprojecting beyond the ends of the drag bars at an angle and pivotallymounted upon said rod, teeth carried by the drag bars, sleeves arrangedbetween the inner ends of the drag bars to retain the same in spacedrelation, yieldable' brace members having their inner ends mounted uponsaid rods and their outer ends rigidly connected to the medial portionsof the draft bars, said brace members having their inner ends disposedadjacent the drag bar next in order, as and for the purpose set forth.

2. A device of the class described including a draft bar, spacedbearings carried thereby, a rod arranged in parallel relation to thedraft bar and mounted within said bearings, drag bars arranged in spacedrelation and pivotally mounted upon said rod,

teeth carried by said drag bars, and a movable member supported uponsaid drag bars, whereby the adjustment of said member will vary thedepth or of engagement of the teeth with the earth.

In testimony whereof I hereunto afliX my signature in the presence oftwo witnesses.

HANS G. HANSON. Witnesses H. C. DILLON, A. M. CLARK.

Gopies of this patent may be obtained for five cents each, byaddressing, the Commissioner of Patents;

Washington, D. G.

